add bool type support for LightCache (#325)

使用数字作为键名时set()成功保存 但是停止框架后再启动框架数据落地恢复时报错类型不符合
Fatal error: Uncaught TypeError: Swoole\Table::set(): Argument #1 ($key) must be of type string, int given in zhamao/vendor/zhamao/framework/src/ZM/Store/LightCache.php:81

src/ZM/ConsoleApplication.php

@@ -30,7 +30,7 @@ class ConsoleApplication extends Application
 {
     public const VERSION_ID = 480;
 
-    public const VERSION = '2.8.6';
+    public const VERSION = '2.8.7';
 
     private static $obj;
 

src/ZM/Store/LightCache.php

@@ -75,7 +75,7 @@ class LightCache
                 } else {
                     return false;
                 }
-                $result = self::$kv_table->set($k, [
+                $result = self::$kv_table->set((string)$k, [
                     'value' => $value,
                     'expire' => $v['expire'],
                     'data_type' => $data_type,
@@ -188,7 +188,10 @@ class LightCache
             $data_type = '';
         } elseif (is_int($value)) {
             $data_type = 'int';
-        } else {
+        } elseif (is_bool($value)) {
+            $data_type = 'bool';
+            $value = json_encode($value);
+        }  else {
             throw new LightCacheException('E00048', 'Only can set string, array and int');
         }
         try {